Error notification. 6hFhg0000002RVZEA2: Rate: value outside of valid range on numeric field: the number 1800.0 is too large; please enter a value with no more than 3 digits and 2 decimal places

Hi Lohith - that error is purely about the Rate field's size, not the value being 'wrong'. The field is defined to hold 3 digits before the decimal and 2 after (so its max is 999.99), and 1800.0 needs 4 digits before the decimal, which overflows it. 

Two ways to fix it, depending on the field: 

1. If 'Rate' is a custom field you or your team created: go to Setup > Object Manager > [the object] > Fields & Relationships > Rate > Edit, and increase Length (the digits to the left of the decimal) to at least 4, keeping Decimal Places at 2. That lets it store 1800.00. Save and re-enter the value. 

2. If 'Rate' is a standard/managed Revenue Cloud field (the Edit option is greyed out and you can't change its length): the cap is intentional, and it usually means the field expects a different kind of value than you're entering - most 'Rate' fields in pricing are a percentage, not an amount. So a value like 1800 may belong in a different field (an amount/price field), or needs to be expressed differently. Check the field's type and help text to confirm what it's meant to hold. 

Quickest way to tell which case you're in: open the field in Object Manager. If it's editable, resize it (option 1); if it's managed/locked, it's option 2 and you'll want the right field for that value. 

Hope that clears the error!